Finding the Fourth Proportional to 143,610.50, 198,187.05 and 89,878.34

Step by Step Solution

1. Step 1: Write the proportion equation
   143,610.50 : 198,187.05 = 89,878.34 : x
2. Step 2: Convert to fraction form
   143,610.50/198,187.05 = 89,878.34/x
3. Step 3: Cross multiply
   143,610.50x = 198,187.05 × 89,878.34
4. Step 4: Simplify right side
   143,610.50x = 17,812,723,063.50
5. Step 5: Solve for x
   x = 17,812,723,063.50/143,610.50
6. Step 6: Final answer
   x = 124,034.96